[
  {"name":"Firefox", "y":45.0},
  {"name": "IE",      "y" : 26.8,"selected" : true},
  { "name": "Chrome","y": 12.8}, 
  { "name": "Safari","y": 8.5},   
  { "name": "Opera","y": 6.2},   
  { "name": "Other","y": 0.7}
]